Device to permit offpump beating heart coronary bypass surgery
First Claim
1. A heart positioning device for use in cardiac surgery on a beating heart, comprising:
- a suction head adapted to positively engage the beating heart; and
an articulating arm which is flexible in an unlocked condition and rigid in a locked condition;
wherein said suction head is movable with respect to said arm even when said arm is in said locked condition.
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Accused Products
Abstract
A system for manipulating a heart during cardiac surgery permits coronary surgery on a beating heart while maintaining cardiac output unabated and uninterrupted. Circumflex coronary artery surgery can be performed using the system. The system locates a suspension head near the apical region of the heart and a gross support near the base of the heart near the AV groove. A frame is positioned within the patient'"'"'s thoracic region and moves with the patient, and a surgical target immobilizer can be used to assist in the movement of the heart if desired. A special suction cup is used which accommodates multiplanar movement of the heart and the myocardium while also preventing heart tissue from interrupting the suction being applied to the heart. One form of the system can be used in minimally invasive surgery.
198 Citations
17 Claims
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1. A heart positioning device for use in cardiac surgery on a beating heart, comprising:
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a suction head adapted to positively engage the beating heart; and
an articulating arm which is flexible in an unlocked condition and rigid in a locked condition;
wherein said suction head is movable with respect to said arm even when said arm is in said locked condition. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of positioning a beating heart for cardiac surgery, comprising the steps of:
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engaging the heart with a head of a heart manipulation device;
lifting the heart to an elevated position; and
suspending the heart in the elevated position by fixing an arm of the heart manipulation device, wherein a suspension link interconnecting the head and the arm permits the heart to move with respect to the fixed arm as the heart continues to beat. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A method of positioning a beating heart for cardiac surgery, comprising the steps of:
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engaging the heart with a head of a heart positioning device;
lifting the heart to an elevated position; and
suspending the heart in the elevated position by fixing an arm of the heart manipulation device, wherein the head is movably connected to the arm, thereby permitting the heart and head to move with respect to the fixed arm as the heart continues to beat. - View Dependent Claims (17)
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Specification